Joseph d'Oncieu de Chaffardon
- Born on March 25, 1873
- Deceased in March 1911, at the approximate age of 37 years
Parents
- Paul d'Oncieu de Chaffardon (1843 - 1907)
- Lucie Angleys (1848 - 1891)
Family
- Married on April 29, 1908, with Alexandra Richetta di Valgoria (1870 - 1959)